How to Fix “Unable to Execute File in the Temporary Directory Error 5”

Step 1: Log On as an Administrator

To ensure proper installation permissions, log in using an administrative account:

1. Click the Start menu, then click on your user profile picture.
2. Select Sign out from the context menu.
3. After the sign-out, choose the Administrator account at the login screen.
4. Enter the required credentials and press Enter to log in.

Pro Tip: If unsure which account is administrative, consult your IT support.

Step 2: Run Installer as Administrator

If you are logged into an administrator account:

1. Locate the installer package, right-click on it.
2. Select Run as administrator from the options displayed.
3. This grants the InstallShield wizard necessary permissions.

Step 3: Set Full Control for the Temp Folder

Ensure that your user account has full control over the Temp folder:

1. Navigate to C:\Users\[Your-User-Name]\AppData\Local.
2. Right-click the Temp folder and select Properties.
3. Go to the Security tab and select your account.
4. Click Edit and check all Allow boxes.
5. Click Apply, then OK.

Step 4: Clear the Temporary Files

Free up space and clear potential issues by deleting content from temporary folders:

1. Open C:\Windows\Temp and delete all contents.
2. Next, navigate to C:\Users\[Your-User-Name]\AppData\Local\Temp and clear this folder as well.

Pro Tip: You may require administrator privileges to delete items in these directories.

Step 5: Create a New Default TEMP Folder

If the default Temp folder is having issues, create a new one:

1. Create a new folder named TEMP in your C drive.
2. Open the Run dialog using Windows + R, type sysdm.cpl, and hit Enter.
3. Select the Advanced tab then click on Environment Variables.
4. Under user variables, click New and set TEMP as the Variable name and C:\TEMP as the Variable value.
5. Press OK to apply changes.

Step 6: Run Disk Cleanup

This tool can help in removing unnecessary files that might cause issues:

1. Type Disk Cleanup in the Start menu search.
2. Select your primary drive, generally (C:).
3. Ensure all file categories to clean are checked and click OK to start.

Step 7: Turn User Account Control Off

Disabling this feature temporarily can prevent interference during installations:

1. Search for User Account Control settings in the Start menu.
2. Lower the slider to Never notify and click OK.
3. Re-test the installation issue after doing this.

Pro Tip: Remember to restore the UAC settings after installation.

Step 8: Perform a Clean Boot

Starting Windows with the minimum drivers might help troubleshoot conflicts:

1. Open the Run dialog box using Windows + R and type msconfig, hit Enter.
2. Go to the Services tab and enable Hide all Microsoft services.
3. Click Disable all, click Apply and reboot.

Step 9: Create a New Administrator Account

If permissions are blocked, creating a new admin account may help:

1. Press Windows + I to open Settings and navigate to Accounts.
2. Select Family & other users and add a new user without a Microsoft account.
3. Set this new user as an Administrator and log in with this account.

Step 10: Disable the Antivirus Program Briefly

Sometimes antivirus can block installations:

1. Open Windows Settings and navigate to Update & Security.
2. Click on Windows Security and manage settings for Virus & threat protection.
3. Toggle off Real-time protection and retry the installation.

Step 11: Reboot Windows Into Safe Mode

Boot into Safe Mode to prevent startup programs from affecting installations:

1. Open the Start menu, select Power, hold Shift and click Restart.
2. Choose Troubleshoot, then Advanced options, followed by Startup Settings.
3. Press 4 to boot into Safe Mode.

Pro Tip: Check if the Error 5 appears when retrying the installation in Safe Mode.